Saw tooth



FIG. 1 is a perspective view of a saw tooth, showing my new design;

FIG. 2 is a front elevation thereof;

FIG. 3 is a rear elevation thereof;

FIG. 4 is a left-side elevation thereof;

FIG. 5 is a right-side elevation thereof;

FIG. 6 is top view thereof; and,

FIG. 7 is bottom plan view thereof.

The broken lines in the drawings show portions of the saw tooth that form no part of the claimed design. 

CLAIM The ornamental design for a saw tooth, as shown and described herein. 